[INFO] fetching crate vertx-tcp-eventbus-bridge-client-rust 0.2.0...
[INFO] checking vertx-tcp-eventbus-bridge-client-rust-0.2.0 against try#1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0 for pr-69530
[INFO] extracting crate vertx-tcp-eventbus-bridge-client-rust 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate vertx-tcp-eventbus-bridge-client-rust 0.2.0 on toolchain 1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate vertx-tcp-eventbus-bridge-client-rust 0.2.0
[INFO] finished tweaking crates.io crate vertx-tcp-eventbus-bridge-client-rust 0.2.0
[INFO] tweaked toml for crates.io crate vertx-tcp-eventbus-bridge-client-rust 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4ecc412a059320211834c1da65d069bbbbf021563a460396c3c734c3846d127c
[INFO] running `"docker" "start" "-a" "4ecc412a059320211834c1da65d069bbbbf021563a460396c3c734c3846d127c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking crossbeam v0.3.2
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-uds v0.2.6
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking vertx-tcp-eventbus-bridge-client-rust v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/lib.rs:55:72
[INFO] [stderr]    |
[INFO] [stderr] 55 |             tokio::spawn(readstream.into_future().map(|_| ()).map_err(|e| ()));
[INFO] [stderr]    |                                                                        ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/lib.rs:56:73
[INFO] [stderr]    |
[INFO] [stderr] 56 |             tokio::spawn(writestream.into_future().map(|_| ()).map_err(|e| ()));
[INFO] [stderr]    |                                                                         ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/lib.rs:68:34
[INFO] [stderr]    |
[INFO] [stderr] 68 |         tokio::run(task.map_err(|e| ()));
[INFO] [stderr]    |                                  ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.57s
[INFO] running `"docker" "inspect" "4ecc412a059320211834c1da65d069bbbbf021563a460396c3c734c3846d127c"`
[INFO] running `"docker" "rm" "-f" "4ecc412a059320211834c1da65d069bbbbf021563a460396c3c734c3846d127c"`
[INFO] [stdout] 4ecc412a059320211834c1da65d069bbbbf021563a460396c3c734c3846d127c